package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.service.CategoryService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@RestController
@Slf4j
@RequestMapping("/category")
public class CategoryController {
    @Autowired
   private CategoryService categoryService;

    /**
     * 新增分类
     * @param category
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody Category category){
        log.info("category:{}",category);
        categoryService.save(category);
        return R.success("新增分类成功");
    }

    /**
     * 分类管理的分页查询
     * @param page
     * @param pageSize
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize){
        //分页构造器
        Page<Category> pageInfo = new Page<>(page,pageSize);
        //条件构造器
        LambdaQueryWrapper<Category> queryWrapper = new LambdaQueryWrapper<>();
        //添加排序条件，根据sort排序
        queryWrapper.orderByAsc(Category::getSort);
        //执行分页查询
        categoryService.page(pageInfo,queryWrapper);

        return R.success(pageInfo);
    }

    /**
     * 根据分类的id删除分类信息，在service层remove()方法中进行了分类
     * 是否关联了菜品和套餐的情况处理
     * @param id
     * @return
     */
    @DeleteMapping
    public R<String> delete(Long id){

        log.info("删除分类信息，id为：{}",id);
//        categoryService.removeById(id);
            categoryService.remove(id);
        return R.success("分类信息删除成功");
    }

    /**
     * 修改分类信息
     * @param category
     * @return
     */
    @PutMapping
    public R<String> update(@RequestBody Category category){
        log.info("修改分类信息：{}",category);

        categoryService.updateById(category);

        return R.success("修改分类信息成功");
    }

    /**
     * 根据分类类型查询分类数据
     * @param category
     * @return
     */
    @GetMapping("/list")
    public R<List<Category>> list( Category category){
        //条件构造器
        LambdaQueryWrapper<Category> queryWrapper = new LambdaQueryWrapper<>();
        //添加条件
        queryWrapper.eq(category.getType()!=null,Category::getType,category.getType());
        //添加排序条件,按sort排序，如果sort一样就按更新时间排序
        queryWrapper.orderByAsc(Category::getSort).orderByDesc(Category::getUpdateTime);
        // 执行查询
        List<Category> list = categoryService.list(queryWrapper);

        return R.success(list);

    }
}
